<script lang="ts" setup>
import { computed, reactive, ref } from 'vue'
import { useStore } from '@/store'
import type { ICategoryItem } from '@/types/api/home'
// import { findBrand } from '@/api/home'
const store = useStore()

// const brand = reactive<ICategoryItem>({
//   id: 'brand',
//   name: '品牌',
//   children: [{ id: 'brand-children', name: '品牌推荐' }],
//   goods: [],
//   brands: []
// })

// 分类数据处理
const menuList = computed(() => {
  // 从 vuex 中拿出分类，取出子分类中的前两项
  const list: ICategoryItem[] = store.state.category.list.map((item) => {
    return {
      id: item.id,
      name: item.name,
      // 防止初始化没有 children 的时候调用 slice 函数报错
      children: item.children && item.children.slice(0, 2),
      goods: item.goods
    }
  })

  // 给一级分类追加 品牌分类 进行渲染。
  // list.push(brand)
  return list
})

// 品牌数据获取
// const getBrandList = async () => {
//   const res = await findBrand(6)
//   brand.brands = res.data.result
// }
// getBrandList()

// 获取分类弹框的数据
const categoryId = ref<string | null>()
const currCategory = computed(() => {
  return menuList.value.find((item) => item.id === categoryId.value)
})
</script>

<template>
  <div class="home-category" @mouseleave="categoryId = null">
    <ul class="menu">
      <li
        v-for="item in menuList"
        :key="item.id"
        :class="{ active: categoryId && categoryId === item.id }"
        @mouseenter="categoryId = item.id"
      >
        <RouterLink to="/">{{ item.name }}</RouterLink>
        <template v-if="item.children">
          <RouterLink to="/" v-for="sub in item.children" :key="sub.id">{{ sub.name }}</RouterLink>
        </template>
        <template v-else>
          <XtxSkeleton width="60px" height="18px" style="margin-right: 5px" bg="rgba(255,255,255,0.2)" />
          <XtxSkeleton width="50px" height="18px" bg="rgba(255,255,255,0.2)" />
        </template>
      </li>
    </ul>
    <!-- 弹层layer位置 -->
    <div class="layer">
      <h4>
        分类推荐
        <small>根据您的购买或浏览记录推荐</small>
      </h4>
      <!-- 商品 -->
      <ul v-if="currCategory && currCategory.goods">
        <li v-for="item in currCategory.goods" :key="item.id">
          <RouterLink to="/">
            <img :src="item.picture" alt="" />
            <div class="info">
              <p class="name ellipsis-2">{{ item.name }}</p>
              <p class="desc ellipsis">{{ item.desc }}</p>
              <p class="price">
                <i>¥</i>
                {{ item.price }}
              </p>
            </div>
          </RouterLink>
        </li>
      </ul>
      <ul v-if="currCategory && currCategory.brands">
        <li class="brand" v-for="item in currCategory.brands" :key="item.id">
          <RouterLink to="/">
            <img :src="item.picture" alt="" />
            <div class="info">
              <p class="place">
                <i class="iconfont icon-dingwei"></i>
                {{ item.place }}
              </p>
              <p class="name ellipsis">{{ item.name }}</p>
              <p class="desc ellipsis-2">{{ item.desc }}</p>
            </div>
          </RouterLink>
        </li>
      </ul>
    </div>
  </div>
</template>

<style lang="scss" scoped>
.home-category {
  width: 250px;
  height: 500px;
  background: rgba(0, 0, 0, 0.8);
  position: relative;
  z-index: 99;
  .menu {
    li {
      padding-left: 40px;
      height: 55.5px;
      line-height: 55.5px;
      // &:hover,
      &.active {
        background: $xtxColor;
      }
      a {
        margin-right: 4px;
        color: #fff;
        &:first-child {
          font-size: 16px;
        }
      }
    }
  }
  // 弹出层样式
  .layer {
    width: 990px;
    height: 500px;
    background: rgba(255, 255, 255, 0.8);
    position: absolute;
    left: 250px;
    top: 0;
    display: none;
    padding: 0 15px;
    h4 {
      font-size: 20px;
      font-weight: normal;
      line-height: 80px;
      small {
        font-size: 16px;
        color: #666;
      }
    }
    ul {
      display: flex;
      flex-wrap: wrap;
      li {
        width: 310px;
        height: 120px;
        margin-right: 15px;
        margin-bottom: 15px;
        border: 1px solid #eee;
        border-radius: 4px;
        background: #fff;
        padding: 0px;
        &:nth-child(3n) {
          margin-right: 0;
        }
        a {
          display: flex;
          width: 100%;
          height: 100%;
          align-items: center;
          padding: 10px;
          &:hover {
            background: #e3f9f4;
          }
          img {
            width: 95px;
            height: 95px;
          }
          .info {
            padding-left: 10px;
            line-height: 24px;
            width: 190px;
            .name {
              font-size: 16px;
              color: #666;
            }
            .desc {
              color: #999;
            }
            .price {
              font-size: 22px;
              color: $priceColor;
              i {
                font-size: 16px;
              }
            }
          }
        }
      }
      // 品牌的样式
      li.brand {
        height: 180px;
        a {
          align-items: flex-start;
          img {
            width: 120px;
            height: 160px;
          }
          .info {
            p {
              margin-top: 8px;
            }
            .place {
              color: #999;
            }
          }
        }
      }
    }
  }
  &:hover {
    .layer {
      display: block;
    }
  }
}

.xtx-skeleton {
  animation: fade 1s linear infinite alternate;
}
@keyframes fade {
  from {
    opacity: 0.2;
  }
  to {
    opacity: 1;
  }
}
</style>
